Luka Doncicjust signed the most lucrative supermax rookie extension in NBA history. His $207 million, five-year deal with theDallas Maverickseclipses what any other rookie has ever received at the end of their first contract. This is because of the stunning, historic accomplishments Doncic achieved at just 22-years-old. Now that thesilky Sloveniangot paid, though, his former teammate JJ Redick wants the money he owes him.